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Communication | Regular issue | Vol 12, No. 11, 1979, pp.1445-1448
Published online, 1st January, 1970
DOI: 10.3987/R-1979-11-1445
Elaeodendrogenin, Elaeodendroside B and C: New Cardiac Steroids from Elaeodendron glaucum

Kazutake Shimada, Toshio Nambara,* Itsuo Uchida, and S. Morris Kupchan (deceased)

*Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980-8578, Japan

Abstract

A new cardiac steroid named elaeodendrogenin and two new cardiac glycosides named elaeodendroside B and C having an unusual sugar linkage were isolated from seeds of Elaeodendron glaucum Pers. The structure of elaeodendrogenin was elucidated to be Ia on the basis of chemical and spectral data. A newly developed procedure for cleavage of a glycoside having a doubly linked sugar was applied to characterization of elaeodendroside B and C. In consequence, the probable structures of these two stereoisomers were deduced to be VI.